The cluster is entirely ubuntu 10.10 based, both SGE 6.2u5 and OpenMPI 1.3
are directly from apt-get except OpenMPI is rebuilt from source with
--with-sge flag.

Note: OpenMPI has been installed on all execution hosts, not on the queue
master and submission host.

I submited a job by

qsub -pe orte 8 ./ompi_job.sh

The error I got looks like
=============================================================================================================================

[sgeqexec01:06612] [[INVALID],INVALID] ORTE_ERROR_LOG: Not found in
file ../../../../../../orte/mca/ess/hnp/ess_hnp_module.c
at line 161
--------------------------------------------------------------------------
It looks like orte_init failed for some reason; your parallel process is
likely to abort. There are many reasons that a parallel process can
fail during orte_init; some of which are due to configuration or
environment problems. This failure appears to be an internal failure;
here's some additional information (which may only be relevant to an
Open MPI developer):

orte_plm_base_select failed
--> Returned value Not found (-13) instead of ORTE_SUCCESS
--------------------------------------------------------------------------
[sgeqexec01:06612] [[INVALID],INVALID] ORTE_ERROR_LOG: Not found in
file ../../../orte/runtime/orte_init.c
at line 132
--------------------------------------------------------------------------
It looks like orte_init failed for some reason; your parallel process is
likely to abort. There are many reasons that a parallel process can
fail during orte_init; some of which are due to configuration or
environment problems. This failure appears to be an internal failure;
here's some additional information (which may only be relevant to an
Open MPI developer):

orte_ess_set_name failed
--> Returned value Not found (-13) instead of ORTE_SUCCESS
--------------------------------------------------------------------------
[sgeqexec01:06612] [[INVALID],INVALID] ORTE_ERROR_LOG: Not found in
file ../../../../../orte/tools/orterun/orterun.c
at line 541